发明授权
US4134981A Pyrimidal [2,3,d]Pyrimidin-4(3H)-ones as antiallergy agents
失效
PYRIMIDAL（2,3，D）PYRIMIDIN-4（3H） - 作为抗菌剂
- 专利标题： Pyrimidal [2,3,d]Pyrimidin-4(3H)-ones as antiallergy agents
- 专利标题（中）： PYRIMIDAL（2,3，D）PYRIMIDIN-4（3H） - 作为抗菌剂
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申请号： US845816申请日： 1977-10-27
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公开(公告)号： US4134981A公开(公告)日： 1979-01-16
- 发明人: Thomas H. Althuis , Leonard J. Czuba , Hans-Jurgen E. Hess , Saul B. Kadin
- 申请人： Thomas H. Althuis , Leonard J. Czuba , Hans-Jurgen E. Hess , Saul B. Kadin
- 申请人地址： NY New York
- 专利权人： Pfizer Inc.
- 当前专利权人： Pfizer Inc.
- 当前专利权人地址： NY New York
- 主分类号： C07D215/54
- IPC分类号： C07D215/54 ; C07D265/26 ; A61K31/435 ; C07D471/04
摘要：
Fused heterocyclic ring systems in which a quinoline or a pyridine component is "fused" to a pyrimidine having a 2-methyl, 2-ethyl, or 2-acetyl group and a 4-keto group, and to similar ring systems in which a quinoline, a naphthalene or a pyridine component is "fused" to a pyrimidine having a 2-carboxy group and a 4-keto group, derivatives, and pharmaceutically-acceptable cationic salts thereof, and their use as antiallergy agents, and intermediates therefor.
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